JPH0211353Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an assembly type storage tank formed by connecting a plurality of unit plates made of glass fiber reinforced resin (FRP) or the like.

[Prior Art] As shown in FIG. 2, a unit plate 3 is integrally provided around a rectangular board 1 with a flange portion 2 rising from the back surface of the board 1, and is connected as shown in FIG. The prefabricated storage tank constructed using this method is now widely used as an aquarium. This unit plate 3 is usually FRP
It is molded from a synthetic resin such as, and generally has a square disc body 1. Also, board 1
In the center of the board surface, there is a bulging board part 1a so that the unit board as a whole can withstand the internal pressure of the storage tank due to liquid storage.
is formed. When connecting the unit plates, a suitable gasket, for example, a band-shaped gasket (hereinafter referred to as a tape gasket) is interposed between the connecting portions of each unit plate, and the connection is performed by tightening bolts.

In FIG. 3, the storage tank 4 is comprised of side panels 5 surrounding it on four sides, a bottom panel 6, and a roof panel 7, and is installed on a base 8.

As shown in FIG. 4, when a liquid, for example 9, is stored in the storage tank 4, the water pressure is
As a result, the side panel 5 receives a large bending load that causes it to bulge out laterally. In particular, a large bending load is applied to the flange in the vertical direction. However, as mentioned above, in the conventionally used unit plate 3, the plate body 1 is square-shaped, and therefore the side panel 5
The unit plates 3 are stacked vertically, and the vertical flange portion of the side panel is formed by connecting the vertical flanges of each unit plate 3. In this way, since the side panel has more than one vertical flange, it tends to lack strength against bending loads due to water pressure.

As a countermeasure for reinforcing this, reinforcing materials 10 and 11 are provided inside the storage tank 4, as shown in FIG. The reinforcing material 10 is made of H steel or the like, and is used as a bracing reinforcing material.
Further, the reinforcing material 11 is a thin steel rod, and is stretched between the opposing side panels 5, 5.

[Problems to be solved by the invention] However, when providing such reinforcing members 10 and 11, extra materials are required in addition to the unit panels, and the material cost, transportation cost, and assembly work cost are all increased. This will increase significantly, pushing up the unit price of storage tanks. Further, when such a reinforcing material is provided inside, there is also the inconvenience that it is difficult to clean the inside.

Furthermore, if the reinforcing material is disposed above the liquid level in the storage tank, corrosion will likely progress due to contact with air, which may lead to contamination of the stored liquid.

Therefore, in recent years, a unit plate 12 having a rectangular plate body 1 as shown in FIG. 5 has come into use. Such a rectangular unit plate 12 is
When using the longitudinal direction as the vertical direction, for example, as shown in FIG. 6, the side panel 5 can have only one vertical flange or the number of joints of the vertical flanges can be reduced. The resistance to internal pressure is improved and it is therefore possible to reduce or eliminate the need for reinforcement.

However, if rectangular unit plates are used and the reinforcing material is omitted, a large tensile stress will be applied to the ceiling panel 7.
The tensile strength becomes insufficient. Above all,
Since the unit plates constituting the ceiling panel are thinner than the unit plates constituting the bottom panel 6, if the installation of reinforcing members 10 and 11 is omitted, the unit plate joints of the ceiling panel 7 There was a risk that the tank would become deformed and lack durability.

[Means for solving the problem] The present invention uses unit plates that are connected to each other through a tape packing in which a reinforcing core material is embedded, as a roof panel installed between side panels. It is something. This reinforcing core material is embedded so as to extend from one end of the tape packing in the longitudinal direction to the other end, and the tape packing has a length that reaches from one side panel to the opposite side panel.

[Function] With this configuration, the tensile strength of the roof panel can be increased in the present application. Therefore, even if the reinforcing member inside the storage tank is omitted,
It is possible to provide the storage tank with high assembly strength.

[Examples] The present invention will be described in more detail below with reference to embodiments shown in the drawings.

FIG. 1 is a perspective view showing a first embodiment of the present invention. This storage tank 13 has a side panel 5, a bottom panel 6
and a roof panel 7, and a base 8
is installed on top. This side panel 5 is formed by disposing a rectangular unit plate 12 on the lower side of the side panel so that its longitudinal direction is in the vertical direction, and connecting a square unit plate 3 to the upper side. The flange 2 of each unit plate 3, 12 is provided with a bolt insertion hole 14 as shown in Figs. 2 and 5, and the adjacent unit plates are connected with a bolt 15 with a tape packing interposed between them. has been done.

Therefore, a tape packing 16 containing a reinforcing core material is provided at the connecting portion of the unit plates 3 constituting the roof panel 7.
is mediated. As shown in FIG. 7, which is a plan view of the main part of the roof panel 7, this tape packing 1
6 is arranged in the short direction of the roof panel 7,
The other side panel 5 facing from one side panel 5
The reinforcing core material, which has a length reaching up to 100 mm and is embedded in the tape packing 16, is provided continuously from one end of the tape packing 16 to the other end.

In this way, tape packing 1 with reinforcing core material
6 makes it possible to significantly increase the tensile strength of the roof panel 7. In addition,
When the roof panel 7 is rectangular,
It is preferable that the tape packing 16 is arranged in the short direction as shown in the figure. This is because the water pressure (total pressure) applied to the long side panels is greater than the water pressure applied to the short side panels, and a larger tensile load is applied to the roof panel in the short direction. .

FIG. 8 is a perspective view showing an example of the configuration of the tape packing. This tape packing 16a is composed of a base material A having appropriate flexibility such as rubber or synthetic resin foam, and piano wire B as a reinforcing core material embedded in the base material A. Bolt insertion holes C are formed in the tape packing 16a at predetermined intervals, and bolts used for connecting adjacent flanges are inserted into the bolt insertion holes C. Thus, the piano wire B is arranged with the bolt insertion holes C on both ends of the tape packing 16a in the longitudinal direction as turning points. Like this, piano wire B
By passing the bolts through the outside of the bolt insertion holes C on both ends, the bolts inserted into the bolt insertion holes C act to pull the piano wire B, thereby greatly increasing the tensile strength of the tape packing 16a. is possible. In addition, piano wire B is tape packing 1
By arranging the materials along the sides of the tape packing 16a, the bolt insertion hole C in the center part of the tape packing 16a can be opened without interfering with these piano wires, and the drilling work for the bolt insertion hole can be easily performed. There is an effect.

FIG. 9 is a perspective view showing the structure of a different tape packing. This tape packing 16b in Fig. 9
A metal mesh D is embedded as a reinforcing core material. The rest of the structure is the same as that of the tape packing 16a.

In the present invention, as the reinforcing core material of the tape packing, a thin plate made of a highly rigid material such as metal, a high-strength fiber, a woven fabric, etc. can also be used. In addition, if the thickness of the tape packing becomes too large, the overall dimensions of the roof panel will increase, making it inconvenient to assemble the storage tank, so use a thin reinforcing core material and keep the thickness of the tape packing appropriate. is preferable.

[Effects of the invention] As detailed above, the prefabricated storage tank of the present invention has a tape packing having a reinforcing core material interposed between the unit plates constituting the roof panel, which improves the tensile strength of the roof panel. High and durable.

Moreover, a reinforcing member inside the storage tank can be omitted, and various costs such as material costs and assembly costs can be reduced. Therefore, there is no fear of contamination of the stored liquid due to corrosion of the reinforcing member. Furthermore, it is also possible to easily clean the inside.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a prefabricated storage tank according to an embodiment of the present invention, FIG. 2 is a perspective view of a unit plate 3, FIG. 3 is a perspective view of a conventional prefabricated storage tank, and FIGS. 4 and 6 are Schematic vertical sectional view explaining the configuration of the assembled storage tank, No. 5
The figure is a perspective view of the unit plate 12, FIG. 7 is a plan view of essential parts of the storage tank according to the embodiment of FIG. 1, and FIGS. 8 and 9 are perspective views of a tape packing containing a reinforcing core material. 1... Board body, 2... Flange, 3, 12... Unit plate, 4, 13... Assembly type storage tank, 5... Side panel, 6... Bottom panel, 7... Roof panel, 16,
16a, 16b...tape packing, A...base material, B, D...reinforcement core material, C...bolt insertion hole.

Claims (1)

[Scope of utility model registration request] In a prefabricated storage tank in which a roof panel is mounted between side panels, and these side panels and roof panels are connected to unit plates via packings, the unit plate connecting portion of the roof panel is There is a tape packing that extends from one side panel to the other side panel, and this tape packing has a reinforcing core material embedded in it so as to extend from one longitudinal end to the other. A prefabricated storage tank featuring: